search for: leibovici

...tion for Statistical Computing ISBN 3-900051-07-0 Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) Also I update the Snow Leopard yesterday ... should I reinstall R with the new kernel? Version du système : Mac OS X 10.6.7 (10J869) Version du noyau : Darwin 10.7.0 -- Dr Didier G. Leibovici Centre for Geospatial Science (CGS) The Nottingham Geospatial Building (NGB) University of Nottingham Innovation Park Triumph Road Nottingham NG7 2TU Tel: +44(0)115 82 32760 fax: +44(0)115 95 15249 http://www.nottingham.ac.uk/cgs/people/didier.leibovici This message and an...

Is there such a function (like sas.get for S ...) to be able to convert a SAS dataset (PC one .sd2) to a dataframe or matrix in R? thanks -- Didier G. Leibovici didier at fmrib.ox.ac.uk +44 (0)1865 222 739 Image Analysis Group fax:+44 (0)1865 222 717 Oxford University, Centre For Functional Magnetic Resonance Imaging of the Brain (FMRIB), John Radcliffe Hospital, Headington, Oxford OX3 9DU, U.K http://www.fmrib.ox.ac.uk/~didi...

Hi all, You will find in attachment to this mail some benchmarks we made on Linux with pios over ZFS-DMU. There are some interesting things about ZFS tuning and some ideas for breaking a bottleneck we identified in DMU. Thomas LEIBOVICI CEA/DAM - Ile de France -------------- next part -------------- A non-text attachment was scrubbed... Name: ZFS_benchs_Linux.pdf Type: application/pdf Size: 99215 bytes Desc: not available Url : http://lists.lustre.org/pipermail/lustre-devel/attachments/20080115/2e443814/attachment-0004.pdf

...e item 1 but he likes so much item 4, for item 2 and 3 he hasn't expressed a rating, etc. I need to construct a tensor with n users, m items and 21 occupations. After I have construct the tensor I want apply Parafac. I read data from a CSV file and build each matrix for each occupation. Didier Leibovici (author of PTAk package) suggested to me: ok that's bit clearer you have 21 matrices ( 1 for each occupations) of users rating their preferences (from 1 to 5 but without rating all of them: missing values) of m items. but I suppose the users are not the same across the 21 occupations (one has...

...2-way SVD with these extensions is also available. The package includes also some other multiway methods: PCAn (Tucker-n) and PARAFAC/CANDECOMP with these extensions. please send comments + looking for nice not too big multi-arrays for the next release demos Didier -- Didier G. Leibovici didier at fmrib.ox.ac.uk +44 (0)1865 222 739 Image Analysis Group fax:+44 (0)1865 222 717 Oxford University, Centre For Functional Magnetic Resonance Imaging of the Brain (FMRIB), John Radcliffe Hospital, Headington, Oxford OX3 9DU, U.K http://www.fmrib.ox.ac.uk/~didi...

...2-way SVD with these extensions is also available. The package includes also some other multiway methods: PCAn (Tucker-n) and PARAFAC/CANDECOMP with these extensions. please send comments + looking for nice not too big multi-arrays for the next release demos Didier -- Didier G. Leibovici didier at fmrib.ox.ac.uk +44 (0)1865 222 739 Image Analysis Group fax:+44 (0)1865 222 717 Oxford University, Centre For Functional Magnetic Resonance Imaging of the Brain (FMRIB), John Radcliffe Hospital, Headington, Oxford OX3 9DU, U.K http://www.fmrib.ox.ac.uk/~didi...

I have a problem with embedding R into perl. I downloaded the interface program/module from omegahat.org, and I can't seem to understand how to use it. This is all done under Win NT 4.0. If anyone have any clue or any suggestions on how to interface R into perl, I would be greatful. Please email me with comments at racerdude911 at yahoo.com Thanks Scott